Question

我有一个POST API，我想用我的应用程序。它的必需参数如下所示：

parameter/type/field option/sample

id  /  int  /  required  /  33
products  /  json/  required/  [{"id":"PREPAY_22223","quantity":1}]
card  /  string  /  option  /  123456

使用JSONModel，我试图用这种方法发布我的数据：

- (RACSignal *)discount:(NSString *)planID withProducts:(NSArray *)product withCardf6:(NSString*)cardf6{
    NSMutableDictionary *parameters = [self defaultParameters];
    parameters[@"id"] = @(planID.intValue);
    ProductJSON *p = [[EZProductJSON alloc]initWithDictionary:product[0] error:nil];
    NSMutableArray *array = [[NSMutableArray alloc]initWithObjects:p, nil];
    parameters[@"products"] = array;
    parameters[@"card"] = cardf6;
    parameters[@"local"] = @"en_US";

return [[[self rac_POST:@"plan/discount" parameters:parameters] map:^id(RACTuple *t) {
    return t;
}] catch:^RACSignal *(NSError *error) {
        return [self customErrorSignal:error];
}];
}

我一直收到一条错误消息，告诉我我正在使用无效的产品数据。我不知道为什么。我应该只是发送NSDictionary而不是JSON数据吗？

Answer 1

您可以使用以下命令将数组转换为JSON字符串：

NSArray *myArray;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:myArray options:NSJSONWritingPrettyPrinted error:&error];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];

并将jsonString传递给API参数...

像这样：

- (RACSignal *)discount:(NSString *)planID withProducts:(NSArray *)product withCardf6:(NSString*)cardf6{
    NSMutableDictionary *parameters = [self defaultParameters];
    parameters[@"id"] = @(planID.intValue);
    ProductJSON *p = [[EZProductJSON alloc]initWithDictionary:product[0] error:nil];
    NSMutableArray *array = [[NSMutableArray alloc]initWithObjects:p, nil];
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:array options:NSJSONWritingPrettyPrinted error:&error];
    NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
    parameters[@"products"] = array;
    parameters[@"card"] = cardf6;
    parameters[@"local"] = @"en_US";

return [[[self rac_POST:@"plan/discount" parameters:parameters] map:^id(RACTuple *t) {
    return t;
}] catch:^RACSignal *(NSError *error) {
        return [self customErrorSignal:error];
}];
}

希望这会帮助你.....

在POST API中将NSDictionary作为JSON参数发送

1 个答案: